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Fukuoka in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Fukuoka in August will be like? Take a look at our weather guide for Fukuoka, based on historical data.
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August

Weather in Fukuoka in August 2025

OK Weather
Hot
🌧️
Rainy
If you plan to visit Fukuoka in August, the weather is typically alright, with an average high temperature of +90°F during the day and approximately 3 sunny days. Expect some rainy, though, as there are typically 20 rainy days in the month and around 205 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • August is usually the hottest month of the year in Fukuoka;

Average weather

☀️
+90°F
Avg. max. temperature
+64°F
Min.
+99°F
Max.
205 mm
Total precipitation
78%
Avg. humidity
2 m/s
Avg. wind
3 ☀️
Sunny Days
6 ⛅️
Cloudy
20 🌦
Rainy
Our opinion: Fukuoka has OK weather in August.

Average temperature in Fukuoka in August

Here are the expected maximum, average and minimum temperatures in Fukuoka for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +97°F during the day to a minimum of +77°F during the night, the temperature in August averages around +91°F.

The average maximum temperature goes down 27% by the end of the month, compared with the beginning of the month, from +95°F to +90°F.

Is Fukuoka warm or cold in August?

Fukuoka is typically hot in August.

Maximum temperatures go up compared to the previous month from +86°F to +90°F. The minimum temperature also goes up from +77°F to +77°F.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

August is the hottest month in Fukuoka, here is the comparison with other months:

Climate in Fukuoka in August

Fukuoka weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+86°F+90°F+82°F
Min. temperature
+63°F+64°F+55°F
Max. temperature
+99°F+99°F+97°F
Rainfall
306 mm205 mm197 mm
Wind
2 m/s2 m/s2 m/s
Humidity
81%78%78%
Air pressure
1007 HPa1008 HPa1011 HPa
Sunny days
234
Cloudy days
568
Rainy days
222017
Snowy days
000

August weather is still as ok as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +86°F to +90°F during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 306 mm to 205 mm. It feels drier, as humidity decreases from 81% to 78%. The average wind speed doesn’t change much during August, staying around 2 m/s. The good news is there are likely to be more sunny days in August, from 2 to 3.

September brings much the same weather, it remains ok.

Wind

Wind speed in Fukuoka in August based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Fukuoka is gradually increasing during August, going from 3 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Fukuoka based on historical data.
Last Year
Historical Data
Typically, there is a 74% chance of rain on an average day in August, with total rainfall of approximately 202 mm. The maximum amount of rainfall per day is around 44 mm, which is moderate rain. August is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
August is one of the rainiest months in Fukuoka, here is a comparison with other months, total mm:
Fukuoka wettest month is June, where a typical day has a 67% chance of precipitation and 311 mm of rainfall per day. January, on the other hand, is the driest month with a mere 45% chance of precipitation and 63 mm of rainfall per day.

How was the weather last August in Fukuoka?

This is the weather in Fukuoka in August 2023:
1 August
☀️
+95°F
2 August
☁️
+95°F
3 August
☁️
+96°F
4 August
☀️
+97°F
5 August
☀️
+97°F
6 August
☀️
+96°F
7 August
🌧️
+93°F
8 August
🌧️
+92°F
9 August
🌧️
+87°F
10 August
🌧️
+86°F
11 August
☁️
+93°F
12 August
☁️
+91°F
13 August
☀️
+89°F
14 August
☁️
+91°F
15 August
🌧️
+82°F
16 August
☁️
+88°F
17 August
☁️
+90°F
18 August
☁️
+90°F
19 August
☁️
+93°F
20 August
🌧️
+93°F
21 August
☀️
+94°F
22 August
🌧️
+94°F
23 August
☁️
+90°F
24 August
🌧️
+93°F
25 August
🌧️
+88°F
26 August
☁️
+90°F
27 August
☁️
+94°F
28 August
☁️
+93°F
29 August
☁️
+95°F
30 August
🌧️
+93°F
31 August
🌧️
+89°F
In August 2023 Fukuoka had 6 sunny days, 14 cloudy days, and 11 rainy days. The average maximum temperature was +91°F, with an absolute maximum of +97°F and a minimum of +82°F. The average humidity was 79%, with a maximum of 96% and a minimum of 55%. The average wind speed was 3 m/s, with a maximum of 13 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change Over the Years

This is how Fukuoka climate has changed over the last 43 years.

The climate in Fukuoka in August has not changed that much over the last 43 years.

The average temperature was the lowest in 1980 (+66°F) and the highest in 1998 (+71°F). The driest year was 1994 with only 1124 mm of rainfall, and the wettest year was 2016 with 2856 mm.

FAQ

Frequently asked questions about the weather in Fukuoka in August:

Is August a good time to visit Fukuoka?

It’s always a good time to visit Fukuoka, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Fukuoka in August?

Absolutely, August is hot in Fukuoka. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Fukuoka rainy in August?

Fukuoka is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Fukuoka in August?

Usually, it’s not very sunny in Fukuoka in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Japan

Check out the weather for other cities in Japan.

Monthly weather in Fukuoka

Source of the data

For this page, we’ve looked at the typical weather in Fukuoka, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.